Home / 142,345.28-196,430.52-84,239.68

Finding the Fourth Proportional to 142,345.28, 196,430.52 and 84,239.68

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Solution

The fourth proportional to 142,345.28, 196,430.52 and 84,239.68 is: 116,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,345.28 : 196,430.52 = 84,239.68 : x
  2. Step 2: Convert to fraction form
    142,345.28/196,430.52 = 84,239.68/x
  3. Step 3: Cross multiply
    142,345.28x = 196,430.52 × 84,239.68
  4. Step 4: Simplify right side
    142,345.28x = 16,547,242,743.68
  5. Step 5: Solve for x
    x = 16,547,242,743.68/142,345.28
  6. Step 6: Final answer
    x = 116,247.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.